Allen Bradley 1756-DH485 SER A ControlLogix Communications Module

The 1756-DH485 module provides seamless communication between devices on DH-485 networks and devices on other networks such as ControlNet, EtherNet/IP, or additional DH-485 networks. It is designed to facilitate reliable data exchange and network integration within industrial control systems.

Key Features

• Sends messages between devices on DH-485 networks and other networks like ControlNet, EtherNet/IP, or other DH-485 networks.

• Provides bridge support to other NetLinx networks via the ControlLogix (CLX) gateway.

• Channels and ports can be configured using RSLinx Classic software, version 2.43 or later.

• Accesses other networks using a routing table editor, allowing DH-485 devices to use the 1756-DH485 module and ControlLogix chassis.

• Supports all benefits and attributes of a ControlLogix communication module.

• Firmware upgrades are supported.

Network Bridging and Integration

• The 1756-DH485 module allows bridging between EtherNet/IP and ControlNet networks to a DH-485 network.

• Upload and download capabilities include:

• All MicroLogix and SLC 500 controllers on DH-485 from NetLinx networks using RSLinx Classic software.

• PanelView Standard terminals on DH-485 from NetLinx networks using RSLinx Classic.

Routing Limitations

• The 1756-DH485 module can route a message through up to four communication networks and three chassis.

• This limitation applies only to message routing, not to the total number of networks or chassis in the system.

DH-485 and CIP Messaging

• The 1756-DH485 module enables devices such as ControlLogix, PLCs, and SLC controllers to exchange information across different networks.

• Communication between SLC controllers on different networks is accomplished using remote messaging.

• Facilitates information exchange between ControlLogix, PLC, or SLC controllers on multiple networks.

The 1756-DH485 module is an essential component for industrial systems requiring flexible, reliable communication across DH-485, ControlNet, and EtherNet/IP networks.